A simultaneous wideband impedance matching and bandpass filtering technique using NUTL segments at 15 GHz
Shaheen, Rana A.; Sethi, A.; Akbar, R.; Aikio, Janne P.; Tuovinen, T.; Rahkonen, T.; Pärssinen, A. (2018-03-12)
R. A. Shaheen et al., "A simultaneous wideband impedance matching and bandpass filtering technique using NUTL segments at 15 GHz," 2018 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet), Anaheim, CA, 2018, pp. 70-72. doi: 10.1109/WISNET.2018.8311567
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This paper presents a simultaneous high-Q impedance matching and bandpass filtering technique for low-noise amplifiers (LNA) for radio frequency integrated circuit (RFIC) phased array system at 15 GHz, over the bandwidth of 1 GHz. A non-uniform transmission line (NUTL) segment is used as a major building block, which provides feasible integration for multiple antennas. A feeding network for single element receiver is demonstrated. The simulated and measured results show sufficient impedance matching of input feeds with S11 <; -10 dB over a relative bandwidth of 7% at 15 GHz.
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